Newton's Law test review

Front

What is Newton's First Law of Motion?

Back

An object at rest stays at rest, and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Front

Define net force.

Back

The net force is the overall force acting on an object when all the individual forces acting on it are combined.

Front

What happens when two forces of equal magnitude act in opposite directions?

Back

The net force is zero, and the object does not accelerate.

Front

What is the relationship between mass and force according to Newton's Second Law?

Back

The force acting on an object is equal to the mass of the object multiplied by its acceleration (F = ma).

Front

If a baseball bat hits a baseball with a force of 100 N, what is the force exerted by the baseball on the bat?

Back

100 N in the opposite direction.

Front

What is the formula for calculating force?

Back

Force (F) = mass (m) × acceleration (a).

Front

How does increasing mass affect the force needed to move an object?

Back

Increasing mass requires a greater force to achieve the same acceleration.

Front

What is the effect of friction on motion?

Back

Friction opposes the motion of an object, requiring more force to move it.

Front

What is an example of an unbalanced force?

Back

A dog pulling on a leash while a person pushes back creates an unbalanced force.

Front

What is the significance of the amount of air pumped into a rocket?

Back

It determines the amount of force acting on the rocket, affecting its motion.